#!/bin/bash

# Renames dir structure and filenames to numbers. Keeps the file extention...
# AvD nov 2019
#
#subname=1

# First rename the subdirs....
#for subdir in $(find . -maxdepth 1 -type d|sort)
#do
#  if [[ "$subdir" == "." ]]; then
#    continue
#  fi
#  mv $subdir 0$subname
#  echo "$subdir was moved to 0$subname"
#  ((subname=subname+1))
#done

# Now do the individual files...
for subdir in $(find . -maxdepth 1 -type d|sort)
do
  if [[ "$subdir" == "." ]]; then
    continue
  fi
  filecntr=1;
  for wavfile in $subdir/*.wav ; do
    if [[ "$wavfile" == "." ]]; then
      continue
    fi
    if [[ "$wavfile" == ".." ]]; then
      continue
    fi
    safename=${wavfile// /_}
    mv "$wavfile" "${wavfile// /_}"
    if [ $filecntr -lt 10 ]; then
      mv $safename $subdir/00${filecntr}.wav
    else
      mv $safename $subdir/0${filecntr}.wav    
    fi
    ((filecntr=filecntr+1))
  done
done
find . -type f -name '.[_|DS]*' -exec rm {} \;
echo "All done..."

// Whizzbizz.com - Arnoud van Delden - November 2019 (for 'uncle Thijs')
//
// Nostalphone Sketch for the PTT T65 rotary dial phone. Waits for hook switch and then reads the number from the rotary dial
// The 'flash'-button on the T65 is used to make a direct random selection from all samples, otherwise the first (or only) number
// determines the subdir/bank to be used (each bank has 10 WAVs) and the last number dialed the WAV within this subdirectory/bank.
// Samples are played through DFPlayer (Mini MP3 Player) controlled over SoftwareSerial with RX=10 and TX=11
//
// Expects a SD-card with the correct directory structure of ten banks/subdirs of ten WAVs each
// The bank/subdir 0/ contains the sounds that are played when only one number was dialed
// Otherwise first number is the bank/subdir, last number dialed the sound that is to be played...
// First WAV on SD is played as dial tone, so provide a WAV-file starting with '00' (e.g. '00 Kiestoon350Hz.wav') in the root of the SD card
//

#include "SoftwareSerial.h"
#include "DFRobotDFPlayerMini.h"

#define SD_ChipSelectPin 10
#define BlinkTime 10000
#define rand_button 4 // Random button (high active)
#define input_dial  5 // Rotary dial active (yellow)
#define input_pulse 6 // Rotary dial pulses (green)
#define input_hook  7 // Pin hook switch connected to (purple)
#define led_green   8 // Green LED: lit on power on, flashes when dialing
#define led_red     9 // Red LED: lit when music is played

unsigned long debounce_time_hook  = 0; // Debounce time for this button/pin...
unsigned long debounce_time_dial  = 0; // Debounce time for this button/pin...
unsigned long debounce_time_pulse = 0; // Debounce time for this button/pin...
unsigned long debounce_time_rand  = 0; // Debounce time for this button/pin...
unsigned long dialing_timeout = 0;     // To keep track of dialing time out...
unsigned long debounceDelay = 50;      // Global debounce time...

bool logging = false; // Serial logging during development...
bool hook_up = false;
bool dialing = false;
bool process_number = false;
bool number_detected = false;

int hook_state;
int pulse_state;
int rand_state;
int last_hook_state = LOW;
int last_dialing_state = HIGH;
int last_io_state_pulse = HIGH;
int last_rand_button_state = HIGH;
int last_number_dialed = 0;
int nrs_dialed = 0;
int pulse_count = 0;
int blink_count = 0; // For the blinking LED...

int rotary_dialing;
int io_state_pulse;
int hook_switch_state;
int rand_button_state;

int random_bank;
int random_song;
int bank_nr = 0;

SoftwareSerial mySoftwareSerial(10, 11); // RX, TX
DFRobotDFPlayerMini myDFPlayer;
void printDetail(uint8_t type, int value);

void setup() {
  mySoftwareSerial.begin(9600);
  Serial.begin(38400);
      
  pinMode(input_hook, INPUT_PULLUP);
  pinMode(input_pulse, INPUT_PULLUP);
  pinMode(input_dial, INPUT_PULLUP);
  pinMode(led_red, OUTPUT);
  pinMode(led_green, OUTPUT);

  logSerial("Nostalphone v1.3");
  logSerial("Initializing DFPlayer...");
  if (!myDFPlayer.begin(mySoftwareSerial)) {  //Use softwareSerial to communicate with mp3.
    logSerial("Unable to begin:");
    logSerial("1.Please recheck the connection!");
    logSerial("2.Please insert the SD card!");
    while(true);
  }
  logSerial("DFPlayer Mini online.");

  myDFPlayer.setTimeOut(500); //Set serial communictaion time out 500ms
  
  //----Set volume----
  myDFPlayer.volume(15);  //Set volume value (0~30).
  myDFPlayer.volumeUp(); //Volume Up
  myDFPlayer.volumeDown(); //Volume Down
  myDFPlayer.EQ(DFPLAYER_EQ_NORMAL);
  myDFPlayer.outputDevice(DFPLAYER_DEVICE_SD);

  if (0) { // Debug diagnostics only: dumps nr of files in each subfolder of the SD card
    Serial.print("1 nr files = ");
    Serial.println(myDFPlayer.readFileCountsInFolder(1));
    Serial.print("2 nr files = ");
    Serial.println(myDFPlayer.readFileCountsInFolder(2));
    Serial.print("3 nr files = ");
    Serial.println(myDFPlayer.readFileCountsInFolder(3));
    Serial.print("4 nr files = ");
    Serial.println(myDFPlayer.readFileCountsInFolder(4));
    Serial.print("5 nr files = ");
    Serial.println(myDFPlayer.readFileCountsInFolder(5));
    Serial.print("6 nr files = ");
    Serial.println(myDFPlayer.readFileCountsInFolder(6));
    Serial.print("7 nr files = ");
    Serial.println(myDFPlayer.readFileCountsInFolder(7));
    Serial.print("8 nr files = ");
    Serial.println(myDFPlayer.readFileCountsInFolder(8));
    Serial.print("9 nr files = ");
    Serial.println(myDFPlayer.readFileCountsInFolder(9));
    Serial.print("10 nr files = ");
    Serial.println(myDFPlayer.readFileCountsInFolder(10));          
  }

  digitalWrite(led_green, LOW);  // turn the green LED on on power on...
  digitalWrite(led_red, HIGH);   // turn the red LED off (HIGH=off)
  
  logSerial("Setup done..."); 
}

void logSerial(String message) {
  // Handled overhere so logging to serial can easily be switched off...
  if (logging) Serial.println(message);
  return;
}

void loop() {
  // Read hook state...
  hook_switch_state = digitalRead(input_hook);  
  if (hook_switch_state != last_hook_state) {
    debounce_time_hook = millis();
  }
  if ((millis() - debounce_time_hook) > debounceDelay) {
    if (hook_switch_state != hook_state) {
      hook_state = hook_switch_state;
      if (hook_state == HIGH) {
        logSerial("Receiver was picked up. Please dial a number...");
        hook_up = true;
        bank_nr = -1;
        nrs_dialed = 0;
        // Output dial tone...
        myDFPlayer.play(1);
      } else {
        logSerial("Receiver is put back. Thanx for using the Nostalphone!");
        hook_up = false;
        myDFPlayer.stop(); // End dial tone...
        digitalWrite(led_green, LOW);  // turn the green LED on on power on...
        digitalWrite(led_red, HIGH);   // turn the red LED off (HIGH=off)
      }
    }
  }
  last_hook_state = hook_switch_state;
  
  if (hook_up) {
    // Read rotary dial state...
    rotary_dialing = digitalRead(input_dial);
    if (rotary_dialing != last_dialing_state) {
      debounce_time_dial = millis();
    }
    
    if ((millis() - debounce_time_dial) > debounceDelay) {
      // Rotary dial T65 dial logic...
      if (!dialing && rotary_dialing==LOW) { // Start using the rotary dial...
        logSerial("Starting dialing phase...");  
        process_number = false;
        dialing = true;
        pulse_count = 0;
        nrs_dialed = 0;
        bank_nr = -1;
        myDFPlayer.stop(); // End dial tone...   
      }
      if (rotary_dialing==LOW) {
        number_detected = false;
        dialing_timeout = millis(); // Keep resetting timer during dialing...
        
        // Pulse count logic...
        io_state_pulse = digitalRead(input_pulse);
        if (io_state_pulse != last_io_state_pulse) {
          debounce_time_pulse = millis();
        }
        if ((millis() - debounce_time_pulse) > 20) {
          if (io_state_pulse != pulse_state) {
            pulse_state = io_state_pulse;
            if (io_state_pulse==HIGH) {
              pulse_count++; 
            }
          }
        }
        last_io_state_pulse = io_state_pulse;
      }

      if (dialing && rotary_dialing==HIGH) {
        // Rotary dial has walked back...
        number_detected = true;
        if (bank_nr<0) {
          bank_nr = pulse_count;
          logSerial("bank_nr: "+(String)bank_nr);
        }
      }

      if (number_detected==true && pulse_count>0) {
        last_number_dialed = pulse_count;
        nrs_dialed++;
        logSerial("last_number_dialed: "+(String)last_number_dialed);
        pulse_count = 0;
        number_detected = false;
      }
      
      if (dialing && ((millis() - dialing_timeout) > 1500)) {
        // Dial time out reached...
        logSerial("Dialing finished...");
        process_number = true;
        dialing = false;
      } 
    }
    last_dialing_state = rotary_dialing;

    if ((hook_up || dialing) && digitalRead(led_red)) {
      // Blink LED...
      if (blink_count > BlinkTime) {
        blink_count = 0;
        // Toggle blink...
        digitalWrite(led_green, !digitalRead(led_green));  // Toggle the green LED...
      }
      blink_count++;
    }

    // Read rand_button state...
    rand_button_state = digitalRead(rand_button);  
    if (rand_button_state != last_rand_button_state) {
      debounce_time_rand = millis();
    }
    if ((millis() - debounce_time_rand) > debounceDelay) {
      if (rand_button_state != rand_state) {
        rand_state = rand_button_state;
        if (rand_state == HIGH) {
          digitalWrite(led_green, HIGH);  // turn the green LED on on power off...
          digitalWrite(led_red, LOW);   // turn the red LED on (HIGH=off)
          process_number = false;
          random_bank = random(9)+1;
          random_song = random(9)+1;
          logSerial("Random bank "+(String)random_bank+" song "+(String)random_song);
          myDFPlayer.playFolder(random_bank, random_song); // Play a random song...
        }
      }
    }
    last_rand_button_state = rand_button_state;    

    if (process_number) {
      if (nrs_dialed==1) bank_nr = 1; // Only one number dialed: use default bank 1...

      // Play WAV....
      logSerial("bank_nr "+(String)bank_nr+" song "+(String)last_number_dialed);
      digitalWrite(led_green, HIGH); // Power off green LED...
      digitalWrite(led_red, LOW);    // Turn the red LED on (HIGH=off)

      process_number = false;
      if (myDFPlayer.available()) {
        printDetail(myDFPlayer.readType(), myDFPlayer.read()); //Print the detail message from DFPlayer to handle different errors and states.
      }  
      myDFPlayer.playFolder(bank_nr, last_number_dialed); // Play the song...
    }  
  } // End hook_up...  
}

void printDetail(uint8_t type, int value) {
  switch (type) {
    case TimeOut:
      logSerial("DFPlayer: Time Out!");
      break;
    case WrongStack:
      logSerial("DFPlayer: Stack Wrong!");
      break;
    case DFPlayerCardInserted:
      logSerial("DFPlayer: Card Inserted!");
      break;
    case DFPlayerCardRemoved:
      logSerial("DFPlayer: Card Removed!");
      break;
    case DFPlayerCardOnline:
      logSerial("DFPlayer: Card Online!");
      break;
    case DFPlayerUSBInserted:
      logSerial("DFPlayer: USB Inserted!");
      break;
    case DFPlayerUSBRemoved:
      logSerial("DFPlayer: USB Removed!");
      break;
    case DFPlayerPlayFinished:
      logSerial("DFPlayer: Number:"+(String)value+" Play Finished!");
      break;
    case DFPlayerError:
      switch (value) {
        case Busy:
          logSerial("DFPlayerError: Card not found");
          break;
        case Sleeping:
          logSerial("DFPlayerError: Sleeping");
          break;
        case SerialWrongStack:
          logSerial("DFPlayerError: Get Wrong Stack");
          break;
        case CheckSumNotMatch:
          logSerial("DFPlayerError: Check Sum Not Match");
          break;
        case FileIndexOut:
          logSerial("DFPlayerError: File Index Out of Bound");
          break;
        case FileMismatch:
          logSerial("DFPlayerError: Cannot Find File");
          break;
        case Advertise:
          logSerial("DFPlayerError: In Advertise");
          break;
        default:
          break;
      }
      break;
    default:
      break;
  }
}

// Whizzbizz.com - Arnoud van Delden - Easter/april 2021 (for 'aunt Kitty')
//
// Nostalphone Sketch for the GPO 746 retro replica rotary dial phone. Waits for hook switch and reads dialed number from the rotary dial by scanning the LDR matrix
// The 'flash'-button on the T65 is used to make a direct random selection from all samples, otherwise the first (or only) number
// determines the subdir/bank to be used (each bank has 10 WAVs) and the last number dialed the WAV within this subdirectory/bank.
// Samples are played through DFPlayer (Mini MP3 Player) controlled over SoftwareSerial with RX=10 and TX=11
//
// Expects a SD-card with the correct directory structure of ten banks/subdirs of ten WAVs each
// The bank/subdir 0/ contains the sounds that are played when only one number was dialed
// Otherwise first number is the bank/subdir, last number dialed the sound that is to be played...
// First WAV on SD is played as dial tone, so provide a WAV-file starting with '00' (e.g. '00 Kiestoon350Hz.wav') in the root of the SD card 
//
#include "SoftwareSerial.h"
#include "DFRobotDFPlayerMini.h"

#define SD_ChipSelectPin 10
#define BlinkTime 25000  // Speed of blinking LED during dial phase when receiver is picked up
#define seq_timeout 4000 // Time out before the number dial phase is considered done
#define input_hook  7  // Pin hook switch connected to (purple)
#define led_green   5  // Green LED: lit on power on, flashes when dialing
#define led_red     6  // Red LED: lit when music is played
#define dial_switch A0 // End of dial rotation reached

// Scan trigger (LEDs lighting, end of dial) = A0 - Negative logic, low active!
int dial_columns[] = {A7, A6, A5};   // Intersection analogue read during scan
int scan_lines[] = {A4, A3, A2, A1}; // Analogs used as OUTPUT. Normal=LOW, during scan read one is HIGH
int scan_columns[] = {2, 3, 4};      // Digitals used as OUTPUT. Normal=LOW, during scan read column is LOW
int matrix_read;
int scan_column;
int scan_line;
int dialed;

unsigned long debounce_time_hook  = 0;       // Debounce time for hook switch...
unsigned long debounce_time_dial_switch = 0; // Debounce time end-of-rotary-dial switch...
unsigned long dialing_timeout = 0;           // To keep track of dialing time out...
unsigned long debounceDelay = 50;            // Global debounce time...

bool logging = false; // Serial logging during development...
bool hook_up = false;
bool dialing = false;
bool process_number = false;
bool number_detected = false;

int hook_state;
int pulse_state;
int rand_state;
int last_hook_state = LOW;
int last_dialing_state = HIGH;
int last_io_state_pulse = HIGH;
int last_number_dialed = 0;
int nrs_dialed = 0;
int blink_count = 0; // For the blinking LED...

int io_state_pulse;
int hook_switch_state;

int dial_state;
int dial_switch_state = HIGH;
int last_dial_switch_state = HIGH;

int bank_nr = 0;

SoftwareSerial mySoftwareSerial(10, 11); // RX, TX
DFRobotDFPlayerMini myDFPlayer;
void printDetail(uint8_t type, int value);

void setup() {
  mySoftwareSerial.begin(9600);
  Serial.begin(38400);
      
  pinMode(input_hook, INPUT_PULLUP);
  pinMode(led_red, OUTPUT);
  pinMode(led_green, OUTPUT);
  // Scan trigger (LEDs lighting) = A0
  pinMode(dial_switch, INPUT); // Low active, negative logic...
  
  // Lines to scan...
  for (scan_line=0; scan_line<4; scan_line++) {
    pinMode(scan_lines[scan_line], OUTPUT);
    analogWrite(scan_lines[scan_line], 0); 
  }
  
  // Columns to scan...
  for (scan_column=0; scan_column<3; scan_column++) {
    pinMode(scan_columns[scan_column], OUTPUT);
    digitalWrite(scan_columns[scan_column], LOW); 
  }
  
  // Dial matrix LDR intersection point analogue INPUT columns A1, A2 and A3 
  for (scan_column=0; scan_column<3; scan_column++) {
    pinMode(dial_columns[scan_column], INPUT);
  }

  logSerial("Nostalphone v1.3");
  logSerial("Initializing DFPlayer...");
  if (!myDFPlayer.begin(mySoftwareSerial)) {  //Use softwareSerial to communicate with mp3.
    logSerial("Unable to begin:");
    logSerial("1.Please recheck the connection!");
    logSerial("2.Please insert the SD card!");
    while(true);
  }
  logSerial("DFPlayer Mini connected");

  myDFPlayer.setTimeOut(500); //Set serial communictaion time out 500ms
  
  //----Set volume----
  myDFPlayer.volume(15);  //Set volume value (0~30).
  myDFPlayer.volumeUp(); //Volume Up
  myDFPlayer.volumeDown(); //Volume Down
  myDFPlayer.EQ(DFPLAYER_EQ_NORMAL);
  myDFPlayer.outputDevice(DFPLAYER_DEVICE_SD);  

  if (0) { // Debug diagnostics only: dumps nr of files in each subfolder of the SD card
    Serial.print("1 nr files = ");
    Serial.println(myDFPlayer.readFileCountsInFolder(1));
    Serial.print("2 nr files = ");
    Serial.println(myDFPlayer.readFileCountsInFolder(2));
    Serial.print("3 nr files = ");
    Serial.println(myDFPlayer.readFileCountsInFolder(3));
    Serial.print("4 nr files = ");
    Serial.println(myDFPlayer.readFileCountsInFolder(4));
    Serial.print("5 nr files = ");
    Serial.println(myDFPlayer.readFileCountsInFolder(5));
    Serial.print("6 nr files = ");
    Serial.println(myDFPlayer.readFileCountsInFolder(6));
    Serial.print("7 nr files = ");
    Serial.println(myDFPlayer.readFileCountsInFolder(7));
    Serial.print("8 nr files = ");
    Serial.println(myDFPlayer.readFileCountsInFolder(8));
    Serial.print("9 nr files = ");
    Serial.println(myDFPlayer.readFileCountsInFolder(9));
    Serial.print("10 nr files = ");
    Serial.println(myDFPlayer.readFileCountsInFolder(10));          
  }

  digitalWrite(led_green, LOW);  // turn the green LED on on power on...
  logSerial("Setup done...");   
}

void logSerial(String message) {
  // Handled overhere so logging to serial can easily be switched off...
  if (logging) Serial.println(message);
  return;
}

void loop() {
  // Read hook state...
  hook_switch_state = digitalRead(input_hook);  
  if (hook_switch_state != last_hook_state) {
    debounce_time_hook = millis();
  }
  if ((millis() - debounce_time_hook) > debounceDelay) {
    if (hook_switch_state != hook_state) {
      hook_state = hook_switch_state;
      if (hook_state == LOW) {
        logSerial("Receiver was picked up. Please dial a number...");
        hook_up = true;
        dialing = false;
        bank_nr = -1;
        nrs_dialed = 0;
        // Output dial tone...
        myDFPlayer.play(1);
      } else {
        logSerial("Receiver is put back. Thanx for using the Nostalphone!");
        hook_up = false;
        myDFPlayer.stop(); // End dial tone...
        digitalWrite(led_green, LOW);  // turn the green LED on on power on...
        digitalWrite(led_red, HIGH);   // turn the red LED off (HIGH=off)
      }
    }
  }
  last_hook_state = hook_switch_state;
  
  if (hook_up) { // Dial sequence...
    if ((hook_up || dialing) && digitalRead(led_red)) {
      if (blink_count > BlinkTime) { // Blink LED...
        // Toggle blink...
        digitalWrite(led_green, !digitalRead(led_green));  // Toggle the green LED...
        blink_count = 0;
      }
      blink_count++;
    }
    
    // Be triggered by the end-of-dial switch. Read dial state...
    int dial_switch_state = digitalRead(dial_switch);
    if (dial_switch_state != last_dial_switch_state) {
      debounce_time_dial_switch = millis();
    }
    if ((millis() - debounce_time_dial_switch) > debounceDelay) {
      if (dial_switch_state != dial_state) {
        dial_state = dial_switch_state;
        if (dial_state==LOW) {
          logSerial("Something dialed...");
          if (!dialing) {
            number_detected = false;
            nrs_dialed = 0;
            last_number_dialed = bank_nr = -1;
            myDFPlayer.stop(); // End dial tone...   
          }
          dialing = true;
          digitalWrite(led_red, HIGH);   // turn the red LED off (HIGH=off)
          dialing_timeout = millis(); // Keep resetting timer during dialing...
          
          // Default whole matrix lines to LOW, cols to HIGH...
          for (scan_line=0; scan_line<4; scan_line++)
            analogWrite(scan_lines[scan_line], 0);
          for (scan_column=0; scan_column<3; scan_column++)
            digitalWrite(scan_columns[scan_column], HIGH);         
   
          // Start matrix scan phase...
          dialed = -1;
          for (scan_line=0; scan_line<4; scan_line++) {
            analogWrite(scan_lines[scan_line], 255);
            for (scan_column=0; scan_column<3; scan_column++) {
              digitalWrite(scan_columns[scan_column], LOW); // Active: pull low
              delay(10);
              // Now read this intersection...
              matrix_read = analogRead(dial_columns[scan_column]);      
              digitalWrite(scan_columns[scan_column], HIGH); // Inactive: pull same level as scan-line
              if (matrix_read>100) {
                dialed = (scan_line*3)+(scan_column+1);
                break;
              }
            }
            analogWrite(scan_lines[scan_line], 0);
          }
          if (dialed >= 0) {
            nrs_dialed++;  
            last_number_dialed = dialed;
            if (nrs_dialed==1 && bank_nr<0)
              bank_nr = dialed;
            logSerial((String)nrs_dialed+" - dialed: "+(String)dialed);
          }
        }
      }
    }
    last_dial_switch_state = dial_switch_state;

    if (dialing && ((millis() - dialing_timeout) > seq_timeout)) {
      // Dial time out reached...
      logSerial("Dialing finished ");
      process_number = true;
      dialing = false;
    }

    if (process_number) {
      if (last_number_dialed==11) { // 10=*, 11=0, 12=#
        last_number_dialed = 10; // Remap '0' to song 10
      } else {
        if (last_number_dialed>=10 || last_number_dialed<0) {
          bank_nr = random(9)+1;
          last_number_dialed = random(9)+1;
        } else {
         if (nrs_dialed==1) // Only one non-wildcard number dialed: use default bank 1...
           bank_nr = 1;         
        }
      }
      if (bank_nr>10) bank_nr = 1;

      // Play WAV....
      logSerial("bank_nr "+(String)bank_nr+" song "+(String)last_number_dialed);
      digitalWrite(led_green, HIGH); // Power off green LED...
      digitalWrite(led_red, LOW);    // Turn the red LED on (HIGH=off)

      process_number = false;
      if (myDFPlayer.available()) {
        printDetail(myDFPlayer.readType(), myDFPlayer.read()); //Print the detail message from DFPlayer to handle different errors and states.
      }  
      myDFPlayer.playFolder(bank_nr, last_number_dialed); // Play the song...
    }
    
  } // End hook_up...
}

void printDetail(uint8_t type, int value) {
  switch (type) {
    case TimeOut:
      logSerial("DFPlayer: Time Out!");
      break;
    case WrongStack:
      logSerial("DFPlayer: Stack Wrong!");
      break;
    case DFPlayerCardInserted:
      logSerial("DFPlayer: Card Inserted!");
      break;
    case DFPlayerCardRemoved:
      logSerial("DFPlayer: Card Removed!");
      break;
    case DFPlayerCardOnline:
      logSerial("DFPlayer: Card Online!");
      break;
    case DFPlayerUSBInserted:
      logSerial("DFPlayer: USB Inserted!");
      break;
    case DFPlayerUSBRemoved:
      logSerial("DFPlayer: USB Removed!");
      break;
    case DFPlayerPlayFinished:
      logSerial("DFPlayer: Number:"+(String)value+" Play Finished!");
      break;
    case DFPlayerError:
      switch (value) {
        case Busy:
          logSerial("DFPlayerError: Card not found");
          break;
        case Sleeping:
          logSerial("DFPlayerError: Sleeping");
          break;
        case SerialWrongStack:
          logSerial("DFPlayerError: Get Wrong Stack");
          break;
        case CheckSumNotMatch:
          logSerial("DFPlayerError: Check Sum Not Match");
          break;
        case FileIndexOut:
          logSerial("DFPlayerError: File Index Out of Bound");
          break;
        case FileMismatch:
          logSerial("DFPlayerError: Cannot Find File");
          break;
        case Advertise:
          logSerial("DFPlayerError: In Advertise");
          break;
        default:
          break;
      }
      break;
    default:
      break;
  } 
}